Vaillant boilers

There’s no timescale for exactly how long a boiler will last, but generally the average lifespan of a boiler is 10-15 years. If a boiler is well-maintained and serviced annually, then it could last even longer.

The best Vaillant boiler for you will depend on factors such as the size of your home, the numbers of bathrooms and radiators in it, and how many people live there. However, with a wide range of Vaillant combi boilers available, as well as system and standard models, you can be confident that Vaillant has a boiler that’s a perfect fit for your home. 

At BOXT, we can help you find the right boiler for your home - simply let us know a few details about your home and existing system then we’ll recommend boilers that will be a great fit to meet your heating and hot water needs, with a fixed price including installation as soon as the very next day.

Vaillant is part of the Vaillant Group, a global market leader in central heating units with over 150 years of experience, and other popular brands, such as Glow-worm, as part of the group. The Vaillant Group sells millions of boilers all over Europe every year, so you can be confident that with a Vaillant boiler, it’s made by a company with the knowledge and experience to make a quality, reliable and efficient heating system.

Vaillant boilers are known as a more premium boiler brand, meaning they come with a slightly higher price tag than some of the budget options. However, in our opinion, the quality and reliability can make the extra investment worth it.

When you buy a Vaillant boiler from BOXT, our prices start from £2,399 including installation. To get a fixed price quote to get a Vaillant boiler installed in your home use our find a boiler tool - it only takes 90 seconds and our Price Promise means you won’t find a better price anywhere else.

Vaillant is a German, family-owned business that dates back to 1874. Vaillant has been active in the UK boiler market since the 1970s, so have been heating our homes for over five decades.

Vaillant boilers are suitable from most homes in terms of output, so you can find the right size Vaillant boiler for your home. This includes the ecoTEC pro combi that comes with outputs of 24kW, 28kW and 30kW. Use BOXT's boiler tool to find the right size boiler for your needs.

The most popular Vaillant boilers have an average efficiency rating of 94%.

Vaillant boilers come with a 5-10 year warranty too.

If you're wondering how old your Vaillant boiler is, you can find this information on the serial number, usually located on the front og your boiler or inside the front panel.

The third and fourth numbers in the serial number show you the year your Vaillant boiler was manufactured. E.g. a serial number starting with "1215" means the boiler was manufactured in the year '15, so 2015, making your boiler 10 years old in 2025.